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Air at 3.80 kg/m3 enters a nozzle that has an inlet-to-
Chapter 5, Problem 95P(choose chapter or problem)
Problem 95P
Air at 3.80 kg/m3 enters a nozzle that has an inlet-to- exit area ratio of 2:1 with a velocity of 120 m/s and leaves with a velocity of 380 m/s. Determine the density of air at the exit.
Questions & Answers
QUESTION:
Problem 95P
Air at 3.80 kg/m3 enters a nozzle that has an inlet-to- exit area ratio of 2:1 with a velocity of 120 m/s and leaves with a velocity of 380 m/s. Determine the density of air at the exit.
ANSWER:
Step 1 of 3:
The density of the air at the inlet =3.80 kg/m3
Inlet velocity = 120 m/s
Outlet velocity =380 m/s
Ratio of area = or
The area of the nozzle varies and considering the flow is compressible, the density of the air at outlet will be different comparing with the inlet. Our aim is to find the density at the outlet of the tube.